Hybrid organic-inorganic monolithic enzymatic reactor with SBA-15 nanoparticles incorporated

作者：Zhang, Zhaodi; Zhang, Lingyi^*; Zhang, Chenggong; Zhang, Weibing

来源：Talanta, 2014, 119: 485-491.

DOI：10.1016/j.talanta.2013.11.037

• Enzymatic reactor
• SBA-15 nanoparticles
• Hybrid organic-inorganic monolith
• Trypsin

A novel enzymatic reactor was prepared by incorporating SBA-15 nanoparticles into hybrid organic-inorganic monolith and immobilizing trypsin with glutaraldehyde as bridging reagent. Preparation and operation conditions including nanoparticles percentage and residence time were optimized to improve the digestion efficiency. The digestion products were characterized by Matrix Assisted Laser Desorption Ionization Time of Flight Mass Spectrometry (MALDI-TOF-MS) with sequence coverage of 50%, 93% and 71% for bovine serum albumin, myoglobin and cytochrome C, while consuming only about 19 s in dynamic mode. Compared with enzymatic reactor without nanoparticles incorporated, the enzymatic reactor with SBA-15 nanoparticles embedded achieved higher digestion efficiency by introducing more trypsin, which was originated from combination of SBA-15 nanoparticles and hybrid organic-inorganic monolith.

• 出版日期2014-2-15
• 单位华东理工大学; 司法部司法鉴定科学技术研究所